Grant Public Schools went into lockdown on Thursday, Feb. 19, in response to a suspicious call made to the high school.

Local scanner reports say the call came in just before 10:57 a.m. According to the Grant Police Department, the call reported a threat that two individuals were heading towards the school with AR-15-style rifles and pipe bombs.

“Law enforcement then conducted coordinated searches of each school building to ensure they were safe,” the department said. “No threats were located during the searches.”

Grant High School, Middle School, Elementary School and Primary Center were also secured by responding law enforcement. All schools were cleared at 1:30 p.m.

Newaygo Public Schools Superintendent Ben Gilpin said his district also went into 'secure mode' following the report of the call.

“We appreciate the quick response and partnership of our local police, first responders and school safety teams in resolving this situation swiftly and professionally,” Grant Public Schools said in a recent post.

An investigation is ongoing as of Thursday, Feb. 19.